Storage battery.



, No. 719,315. PATENTED JAN. 27, 1903.

- G. H. EVERETT.

STORAGE BATTERY.

APPLIOATION 11.21) JULY 8. 1901. no MODEL. 2 snnms-snnm 1.

m: NORRIS wrrzws co. Mom-M1110,v WASHINGTON D c PATENTED JAN. 27, 1903.

C. H. EVERETT.

STORAGE BATTERY.

APYLIUATION FILED JULY 8, 1901.

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Q/jzM/M %M//Wwb W v d o/r Wu WW yr hf NrTh STATES CLAUDE HAROLD EVERETT,OF ATLANTA, GEORGIA.

STO RAG E BATTERY.

SPECIFICATION forming part of Letters Patent No. 719,315, dated January27, 1903. Application filed uly 8,1901. Serial No. 67,464- (No model.)

To all whom it may concern.-

Beit known that I, CLAUDE HAROLD EVER- ETT, of Atlanta, in the county ofFulton, and in the State of Georgia, have invented certain new anduseful Improvementsin Storage Batteries; and I do hereby declare thatthe following is a full, cleargand exact description thereof, referencebeing had to the accompanying drawings, in which Figure 1 is the frontelevation of a plate embodying my invention. Fig. 2 is a side elevationof the plate illustrated in Fig. 1. Figs. 3 and 4 are respectively frontand side elevations of the strips which are placed on the arms of theplate shown in Fig. 1. Fig. 5 is a sectional view of the plate of mybattery having the strips in position'thereon and placed in thecontaining-cell.

Letters of like name and kind refer to like parts in each of thefigures.

The object of myinvention has been to provide -a storage-battery platewhich will have, among others, the following advantages: that of beinglight and at the same time strong, not easily injured by jarring, rapidcharging or discharging, or by short-circuiting, and that of havinglarge capacity for a given weight; and to such ends my inventionconsists in the storage-battery plate hereinafter specified.

In carrying my invention into practice I provide a frame A, whichconsists, preferably, of a strip ct,with arms a and at extending fromthe supporting strip a,said arms being unconnected at their outer-ends.The strip and arms may be of any desired cross-section. I prefer,however, to make the strip a rectangular in horizontal cross-section andwider in the plane of the arms than transversely thereto and to make thearms a diamond shape in cross-section. Such parts can, however, be madesquare, oval, channel, round, or any other desired cross-section. Whilethe drawings show a central supporting-strip a, and arms radiatingtherefrom on each side, I do not confine myself to this construction, asit is evident that the arms could radiate from one side and be either inone plane or several planes. Corrugated sheetmetal strips 0, which areperforated with holes a, that correspond to the cross-sections of thearms a, are passed over such arms and are secured thereto by soldering,burning, or any other practical means. The strips 0 are also preferablyprovided with openings 0' and c between the openings which receive thearms, thereby increasing the active surface by allowing the electrolyteto reach the interior of the plate. I prefer to make these strips ofcorrugated metal, as such corrugations allow for expansion of the plateduring rapid discharge without buckling taking place. These can be made,however, of flat sheets; but I thereby lose the advantage of expansionof strips in the direction of their length. The strips 0 are closetogether, and yet separated with a sufficient space to permit theformation of an ample quantity of peroxid of lead or any other activematerial.

The frames of my plates being formed with parallel arms, which areunconnected at the outer extremity, and being formed of a strongmaterial are not easily injured by expansion and contraction of theactive substances, as they are free to expand laterally and vertically,and there is no tendency for such frame to buckle or warp, so as totouch each other, and thereby short-circuit the battery. The corrugatedstrips are admirably adapted to hold the active substances, and theircorrugated shape allows them to expand and contract withoutinjury tothemselves or to the frame of the plate. The cross-section of arms canbe made of such size as is found most desirable to give the batteryrequisite strength for the use for which it is intended. The arms of theframe being completely embedded in the active material removes alltendency to local action. The arms form short and direct connectionsbetween the active material and the vertical strips a. The slots oropenings in the strip 0 between the arms a permit the free access of theelectrolyte to the various parts of the plate, thereby increasing theactive surface of the plate, which not only increases the capacity, butalso permits a heavier discharge rate.

It will be seen that my battery is one of light weight, large capacity,heavy discharge rate, high efificiency, and of ample. strength to standthe blows and shocks to which it is subjected in use.

Having thus described my invention, what I claim is-- 1. In astorage-battery plate, the combination of a support, arms extendinglaterally therefrom, said arms being unconnected at their outer ends,and sheet metal strips mounted on said arms.

2. In a storage-battery plate, a combination of a supporting-strip, aseries of arms extending laterally therefrom, said arms beingunconnected at their outer ends, and corrugated sheet-metal stripsmounted on such arms.

3. In a storage-battery plate, the combination of a supporting-strip, aseries of arms extending laterally therefrom, said arms beingunconnected at their outer ends, and corrugated sheet-strips mountedupon such arms, such strips having perforations to allow electrolyte tocirculate in the interior of the plates.

4. A storage-battery plate consisting of a frame, and lead stripssecured to said frame, said strips having openings for the admission ofthe battery fluid.

5. A positive storage-battery plate, consisting of the combination of avertical support, arms extending horizontally therefrom, and corrugatedsheet-lead strips, such strips having openings therein in which saidarms are adapted to be received, and such strips being secured upon saidarms, substantially as and for the purpose described.

In testimony that I claim the foregoing I have hereunto set my hand this6th day of July, A. D. 1901.

CLAUDE HAROLD EVERETT.

Witnesses:

LoUIs T. HALL, EDWIN J. PRINDLE.

